Drain device for sinks, basins, etc.



May 22, 1945.

R. w. SHERBURNE DRAIN DEVICE .FOR smxs,

BAS INS, ETC

Filed July 27, 1943 V 2 Sheets-Sheet l I n ventm Russell 14 SherZu/rne,

fi e/way Em May 22,- 1945.

R. w. SHERBURNE DRAIN DEVICE FOR SINKS,

BASINS ETC Filed July 27, 1943 2 Sheets-Sheet 2 w t m M I EmsSeZZ W skenzorme y W 1 1 W Atorneys Patented May 22, 1945 UNITED s'rA'rss PATENT;

OFFICE DRAIN DEVICE FOR SINKS, BASIN S, ETC.

Russell W. Sherburne, Brunswick, Maine Application July 27, 1943, Serial No. 496,314 2 Claims. (01. 4 -206) The present invention relates to new and useful improvements in drain devices, particularly for sinks, basins, and other plumbing fixtures, and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character comprising novel means for causing the water to drain from the bottom of the fixture.

Another very important object of the invention is to provide a drain device of the aforementioned character which will permit the discharge of the water to be arrested at a predetermined level, if desired.

Still another im ortant object of the invention is to provide a drain appliance of the character described which is adapted to be expeditiously mounted for operation in the fixture or removed therefrom and which requires no extraneous securing means. v

Other objects of the invention are to provide a drain device of the character set forth which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of th following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in vertical longitudinal sec* tion through a sink, showing a device constructed in accordance with the present invention mounted therein.

Figure 2 is a top plan view.

Figure 3 is a View in horizontal section, taken substantially on the line 3-3 of Figure 4.

Figure 4 is a vertical sectional View, taken substantially on the line 4--4 of Figure 2.

Figure 5 is a View in side elevation with a por tion of the outer tube broken away in section and the cap omitted.

Figure 6 is a view in horizontal section on an enlarged scale, taken substantially on the line 6--6 of Figure 4.

Referring now to the drawings in detail, it will be seen that reference numeral l designates generally a conventional sink. Connected in the usual manner to the bottom 2 of the sink l is a drain 3.

2 of the sink l in a manner to cover and close the drain 3. The disk 4, which may be of any desired diameter, is held in position over the drain 3 by the pressure of the water in the sink I in a manner which is thought to be obvious.

' Secured on the central portion of the flexible disk 4 is a circular metallic ring 5. Fixed at an intermediate point in the ring 5 and extending through the flexible disk 4 is a metallic tube 8. The tube 6 is open at both ends.

Fixed on the ring 5 and rising therefrom in spaced, concentric relation to the tube 6 is an outer tube 7. The outer tube 1 comprises a threaded upper end portion 8 which extends above the tube 6 and which has mounted thereon a removable cap 9. The outer tube I has formed in its lower portion, immediately adjacent the ring 5, a plurality of circumferentially elongated water intake openings Hi.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. Briefly, the flexible disk 4 is placed in position on the bottom 2 of the sink I over the drain '3, in which position said disk is held by gravity together with the pressure of the water in said sink. With the disk 4 thus positioned, the lower portion of the tube 6 extends downwardly into the drain 3. With the cap 9 applied to the tube I, the water from the bottom of the sink enters the openings HI and flows upwardly in the outer tube 1 around the inner tube 6. The water enters the inner tube 6 at the upper end thereof and flows downwardly therethrough into the drain 3. The construction and arrangement is such that a siphon action occurs whereby the water will be drained to the level of the openings II]. If it is desired to arrest the discharge Of the water at the level of the upper end of the inner tube 6, the cap 9 is removed from the outer tube 1, thus breaking the siphon.

An air vent tube I l is mounted on the outer tube 1 and extends downwardly through the ring 5 and the disk 4 into the drain 3.

It is believed that the many advantages of a drain device constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of said device is as illustrated and described, it is to be understood that changes in the details of construction maybe resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A drain appliance for plumbing fixtures having a drain communicating therewith, compris ing a flexible member adapted to be mounted in the fixture over the drain, a ring mounted on the member, a vertical tube fixed on the ring at an intermediate point and extending through the member into the drain, and an outer tube fixed on the ring and rising therefrom in spaced, concentric relation to the first named tube said outer tube extending above the first-named tube and having a removable closure at its upper end and intake openings in its lower end portion.

2.. A drain appliance for plumbing fixtures having a drain communicating therewith comprising a flexible rubber disk adapted to be mounted in the fixture over the drain, a metallic ring mounted centrally on said disk, a vertical tube fixed at an intermediate point in the ring and extending through the disk into the drain, said tube being open at its ends, a vertical outer tube fixed on the ring and rising therefrom in spaced, concentric relation to the inner tube and extending above the upper end thereof and communicating'therewith, a removable cap on the upper end of the outer tube, said outer tube having intake openings in its lower portion, and a vent tube mounted on the outer tube and extending downwardly through the disk into the drain.

RUSSELL W. SHERBURNE. 

